116 lines
2.5 KiB
C
116 lines
2.5 KiB
C
/*
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* \brief Hardware-resource access
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* \author Christian Helmuth
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* \date 2008-10-21
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*/
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/*
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* Copyright (C) 2008-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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#ifndef _INCLUDE__DDE_KIT__RESOURCES_H_
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#define _INCLUDE__DDE_KIT__RESOURCES_H_
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#include <dde_kit/types.h>
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/**
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* Allocate I/O port range (x86)
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*
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* \param start first port of range
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* \param size size of port range
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*
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* \return 0 on success, -1 otherwise
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*/
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int dde_kit_request_io(dde_kit_addr_t start, dde_kit_size_t size,
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unsigned short bar, dde_kit_uint8_t bus,
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dde_kit_uint8_t dev, dde_kit_uint8_t func);
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/**
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* Free I/O port range (x86)
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*
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* \param start first port of range
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* \param size size of port range
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*
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* \return 0 on success, -1 otherwise
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*/
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int dde_kit_release_io(dde_kit_addr_t start, dde_kit_size_t size);
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/**
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* Read I/O port (byte)
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*
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* \param port port to read
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*
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* \return value read from port
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*/
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unsigned char dde_kit_inb(dde_kit_addr_t port);
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/**
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* Read I/O port (2-byte)
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*
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* \param port port to read
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*
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* \return value read from port
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*/
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unsigned short dde_kit_inw(dde_kit_addr_t port);
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/**
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* Read I/O port (4-byte)
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*
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* \param port port to read
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*
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* \return value read from port
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*/
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unsigned long dde_kit_inl(dde_kit_addr_t port);
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/**
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* Write I/O port (byte)
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*
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* \param port port to write
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* \param val value to write
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*/
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void dde_kit_outb(dde_kit_addr_t port, unsigned char val);
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/**
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* Write I/O port (2-byte)
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*
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* \param port port to write
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* \param val value to write
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*/
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void dde_kit_outw(dde_kit_addr_t port, unsigned short val);
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/**
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* Write I/O port (4-byte)
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*
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* \param port port to write
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* \param val value to write
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*/
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void dde_kit_outl(dde_kit_addr_t port, unsigned long val);
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/**
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* Allocate MMIO range
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*
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* \param start begin of MMIO range
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* \param size size of MMIO range
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* \param wc if !0 request write-combined memory mapping
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*
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* \retval vaddr virtual start address mapped range
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* \return 0 on success, -1 otherwise
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*/
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int dde_kit_request_mem(dde_kit_addr_t start, dde_kit_size_t size,
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int wc, dde_kit_addr_t *vaddr);
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/**
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* Free MMIO range
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*
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* \param start begin of MMIO range
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* \param size size of MMIO range
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*
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* \return 0 on success, -1 otherwise
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*/
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int dde_kit_release_mem(dde_kit_addr_t start, dde_kit_size_t size);
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#endif /* _INCLUDE__DDE_KIT__RESOURCES_H_ */
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